If there is no sound or frequent sound drop when using HDMI passthrough, then please reboot the system.

Update Instruction

Self Installation

You can install the release to your MicroSD or eMMC with the tool dd in Linux or Etcher in Windows. Please refer this for more detail.

We've reported that some of users can not watch Android logo on their TV while installing even though installation is proceeded. So please wait for 5 minutes since power on and red and blue LED is on. If blue led is started blinking then installation is proceeding, ODROID-C2 will reboot when finished.

Upgrade Installation

Since Android release 2.0, we provide you update package which can upgrade your device without rewrite your SD card or eMMC. This package can be downloaded and upgrade on ODROID Utility.

Update server setting

You can set your own update server and path where you upload your custom update package. Ordinary users does not need to run this and change the detail, it is already set with Hardkernel's official download server for ODROID-C1/C2.

Check online update

This will start to check latest update from Hardkernel's official download server and start to download and install if new version is discovered. Your ODROID-C1/C2 device must be connected through the network.

Package install from storage

This will help you to install the official upgrade package downloaded manually or custom update package. You can store a update file to external storage and select it to install.

Fastboot Update

Your can update the release by fastboot if you have MicroSD or eMMC already Android installed. If you have USB-Serial kit, you can enter to Fastboot mode when you execute the command fastboot on U-boot command line. Or if you run execute reboot fastboot from Android shell command line, your ODROID-C2 will reboot and get into fastboot mode immediately. You can check if your ODROID-C2 is attached via USB with the command fastboot devices in your desktop.